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US 2011/0084746 A1Published application
Edge rate control
AssigneeFairchild Semiconductor Corporation
InventorWilliam D. Llewellyn
Life of this patent
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Abstract
This document discusses, among other things, a system and method for reducing electromagnetic interference of a switched signal. In an example, a switched input signal can be received at an input and a transition rate of an edge rate controlled, switched output signal can be controlled in response to the received switched input signal.
Claims20
An apparatus for reducing electro-magnetic interference, the apparatus comprising:
- an input configured to receive a switched input signal;
- an output configured to provide an edge rate controlled, switched output signal corresponding to the received switched input signal;
- and
- a controller responsive to the received switched input signal, the controller including:
- an integrating amplifier configured to control a transition rate of the edge rate controlled, switched output signal between first and second signal levels.
2 more elements
A method for reducing electro-magnetic interference, the method comprising:
- receiving a switched input signal at an input;
- controlling a transition rate of an edge rate controlled, switched output signal in response to the received switched input signal;
- providing the edge rate controlled, switched output signal at an output;
- and
- wherein the controlling the transition rate includes controlling the transition rate of the edge rate controlled, switched output signal between first and second signal levels using an integrating amplifier.
2 more elements
Dependencies are inferred from the claim text.